remove iOS folder (#61561)

packages/flutter_tools/lib/src/template.dart

@@ -129,9 +129,10 @@ class Template {
         return null;
       }
 
-      // TODO(cyanglaz): do not add iOS folder by default when 1.20.0 is released.
-      // Also need to update the flutter SDK min constraint in the pubspec.yaml to 1.20.0.
-      // https://github.com/flutter/flutter/issues/59787
+      final bool ios = context['ios'] as bool;
+      if (relativeDestinationPath.contains('ios') && !ios) {
+        return null;
+      }
 
       // Only build a web project if explicitly asked.
       final bool web = context['web'] as bool;

packages/flutter_tools/test/commands.shard/permeable/create_test.dart

@@ -1533,7 +1533,7 @@ void main() {
 
     // TODO(cyanglaz): no-op iOS folder should be removed after 1.20.0 release
     // https://github.com/flutter/flutter/issues/59787
-    expect(projectDir.childDirectory('ios').existsSync(), true);
+    expect(projectDir.childDirectory('ios').existsSync(), false);
     expect(projectDir.childDirectory('android').existsSync(), false);
     expect(projectDir.childDirectory('web').existsSync(), false);
     expect(projectDir.childDirectory('linux').existsSync(), false);
@@ -1542,7 +1542,7 @@ void main() {
 
     // TODO(cyanglaz): no-op iOS folder should be removed after 1.20.0 release
     // https://github.com/flutter/flutter/issues/59787
-    expect(projectDir.childDirectory('example').childDirectory('ios').existsSync(), true);
+    expect(projectDir.childDirectory('example').childDirectory('ios').existsSync(), false);
     expect(projectDir.childDirectory('example').childDirectory('android').existsSync(), false);
     expect(projectDir.childDirectory('example').childDirectory('web').existsSync(), false);
     expect(projectDir.childDirectory('example').childDirectory('linux').existsSync(), false);
@@ -1557,25 +1557,6 @@ void main() {
   });
 
 
-  // TODO(cyanglaz): no-op iOS folder should be removed after 1.20.0 release
-  // https://github.com/flutter/flutter/issues/59787
-  testUsingContext('create an empty plugin contains a no-op ios folder, but no pubspec entry.', () async {
-    Cache.flutterRoot = '../..';
-    when(mockFlutterVersion.frameworkRevision).thenReturn(frameworkRevision);
-    when(mockFlutterVersion.channel).thenReturn(frameworkChannel);
-
-    final CreateCommand command = CreateCommand();
-    final CommandRunner<void> runner = createTestCommandRunner(command);
-    await runner.run(<String>['create', '--no-pub', '--template=plugin', projectDir.path]);
-
-    expect(projectDir.childDirectory('ios').existsSync(), true);
-    expect(projectDir.childDirectory('example').childDirectory('ios').existsSync(), true);
-    validatePubspecForPlugin(projectDir: projectDir.absolute.path, expectedPlatforms: const <String>[
-      'some_platform'
-    ], pluginClass: 'somePluginClass',
-    unexpectedPlatforms: <String>['ios']);
-  });
-
   testUsingContext('plugin supports ios if requested', () async {
     Cache.flutterRoot = '../..';
     when(mockFlutterVersion.frameworkRevision).thenReturn(frameworkRevision);